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The moose likes Programmer Certification (SCJP/OCPJP) and the fly likes No Big Moose Saloon
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Dhananjay Ramakrishnappa
Greenhorn

Joined: Jul 25, 2005
Posts: 5
Therz no difference in terms of effieciency.

In the first case a is compared with null

In the second case null is compared with a.

Its very much similar to if(a==a){}
Barry Gaunt
Ranch Hand

Joined: Aug 03, 2002
Posts: 7729
I thing this post belongs in the Performance forum in this thread


Ask a Meaningful Question and HowToAskQuestionsOnJavaRanch
Getting someone to think and try something out is much more useful than just telling them the answer.
 
It is sorta covered in the JavaRanch Style Guide.
 
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